scholarly journals Lead Ions Sorption from Waste Solution Using Aluminum Hydroxide Modified Diatomite

2014 ◽  
Vol 05 (06) ◽  
pp. 509-516 ◽  
Author(s):  
Ying Wang ◽  
Yifeng Lu ◽  
Rongzhi Chen ◽  
Lan Ma ◽  
Yong Jiang ◽  
...  
Keyword(s):  
Aluminum Hydroxide ◽  
Lead Ions ◽  
Waste Solution ◽  
Modified Diatomite

Sorption mechanism of lead ions onto manganese oxide-modified diatomite from aqueous solutions

2018 ◽  
Vol 135 ◽  
pp. 198-209
Author(s):  
Lili Ma ◽  
Qinglin Xie ◽  
Nanchun Chen ◽  
Hui Xu ◽  
Qingfeng Yu ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Manganese Oxide ◽  
Lead Ions ◽  
Sorption Mechanism ◽  
Modified Diatomite

The Diatomite Modified by PAM and Applied to Adsorb Pb(II) in the Simulated Wastewater

2011 ◽  
Vol 233-235 ◽  
pp. 382-389 ◽  
Author(s):  
Wen Yang ◽  
Ping Wang ◽  
Wen Lian Luo ◽  
Jian Zhu ◽  
Ye Zhang
Keyword(s):  
Adsorption Capacity ◽  
Red Soil ◽  
Lead Ions ◽  
Interior Structure ◽  
Simulated Wastewater ◽  
Modified Diatomite

A study of the modified diatomite prepared by the PAM coated on the surface of the raw diatomite and applied to treat the simulated wastewater with intensive concentration of lead ions [Pb(Ⅱ)]. Pb(Ⅱ) has been considered as one of some significantly toxic heavymetals (Cd,Cr,Pb, Mn,Cu,Zn,et al) contaminated the surfacewaters. The results indicated that modification could enhance the diatomite and acidic heavymetal wastewater’s compatibility; Obtained that modified diatomite’s saturated adsorption capacity could reach 66.15~ 68.95mg/g, superior to raw one; At the same time, the comparation of four common adsorbents and modified diatomite’s adsorption capacity under some given conditions showed: modified diatomite > zeolite > vermiculite > raw diatomite > red soil; Observed by SEM, PAM molecule arrayed on the diatomite’s surface smoothly that improved its interior structure and the charge on the surface, even enhanced the sedimentation performance of the diatomite in heavymetal wastewater.

Removal of aniline and phenol from water using raw and aluminum hydroxide-modified diatomite

2013 ◽  
Vol 67 (7) ◽  
pp. 1620-1626 ◽  
Author(s):  
C. D. Wu ◽  
J. Y. Zhang ◽  
L. Wang ◽  
M. H. He
Keyword(s):  
Surface Area ◽  
Aluminum Hydroxide ◽  
Surface Charge Density ◽  
Physicochemical Characteristics ◽  
Point Of Zero Charge ◽  
Solution Ph ◽  
Ft Ir ◽  
Langmuir And Freundlich Models ◽  
Modified Diatomite ◽  
Scanning Electron

The feasibility of using raw diatomite and aluminum hydroxide-modified diatomite (Al-diatomite) for removal of aniline and phenol from water was investigated. Their physicochemical characteristics such as pHsolution, point of zero charge (pHPZC), surface area, Fourier transform infrared (FT-IR) and scanning electron microscopy was determined. After the raw diatomite was modified, the surface area of Al-diatomite increases from 26.67 to 82.65 m2 g–1. The pHPZC and pHsolution (10%) occurred around pH 5.2 and pH 8.6, respectively. The removal rates of aniline and phenol on diatomite and Al-diatomite decreased with increasing solution pH, while surface charge density decreased. The adsorption of aniline and phenol on diatomite presented a good fit to the Langmuir and Freundlich models, but the models are not fit to forecast the adsorption of aniline and phenol on Al-diatomite. The study indicated that electrostatic interaction was a dominating mechanism of aniline and phenol sorption onto Al-diatomite.

scholarly journals Analysis of Lead Ions in a Waste Solution Using Infrared Photo-Diode Electrode

2008 ◽  
Vol 24 (3) ◽  
pp. 227-233
Author(s):  
Suw-Young Ly ◽  
Hyun-Kuy Lee ◽  
Kyu-Ju Kwak ◽  
Jun-Seok Ko ◽  
Jeong-Jae Lee ◽  
...  
Keyword(s):  
Lead Ions ◽  
Waste Solution ◽  
Photo Diode

Preparation and Properties of an Aluminum Hydroxide-Modified Diatomite Sorbent for Removal of Fluorides from Waters

2019 ◽  
Vol 55 (4) ◽  
pp. 455-462 ◽  
Author(s):  
V. I. Zelentsov ◽  
T. Ya. Datsko ◽  
E. D. Politova ◽  
G. F. Volodina ◽  
A. S. Smolyanskii
Keyword(s):  
Aluminum Hydroxide ◽  
Modified Diatomite

Elaboration of copper hydroxide phase modified diatomite and their application in lead ions immobilization

2011 ◽  
Vol 35 (2) ◽  
pp. 461-468 ◽  
Author(s):  
Raphaël Knoerr ◽  
Jocelyne Brendlé ◽  
Bénédicte Lebeau ◽  
Hervé Demais
Keyword(s):  
Lead Ions ◽  
Copper Hydroxide ◽  
Modified Diatomite ◽  
Hydroxide Phase
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